Artillery-ammunition.



K. VULLBR. ARTILLERY AMMUNITION.

APPLIO-ATION FILED AUG. 22, 1910.

Patented May 30, 1911.

KARL VLLEB, 0F DUSSELDORF, GERMANY, ASSIGNOR TO RHEINISCHE METALL-WAAREN- UND MASCHINENFABRIK, OF DUSSELDORF-DERENDORF, GERMANY.

ARTILLER-Y-AMMUNITION.

I ToIrZZ whom it may concern:

Be it known that I, KARL VoLLER, engineer, a subject of the GermanEmperor, residing at 17 Jiilicherstrasse, Dusseldorf, Germany, haveinvented certain new and useful Improvements in Artillery-Ammunition;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to artillery ammunition of the kind having aseparable cartridge casing, in which the propulsive charge can be variedas may be necessary. In ammunition of this kind hitherto used thepropulsive charge has been held in place by a cover of cardboard orsimilar material firmly jammed in the casing or glued therein. When itis required to change the propulsive charge in such ammunition theoperation in volved is very detailed. The cover, firmly pressed in thecartridge casing, must be removed by means of a loop fixed to it,considerable power being required, and after the propulsive charge hasbeen changed the cover must be again pressed in the casing upon thecharge. The edge of the cover is apt to become bent in this operationand the mass of propulsive powder becomes irregularly compressed, fromwhich circumstance there may arise incomplete or irregular com bustionof the powder.

Itis the purpose of this invention to avoid mishaps of this kind.According to the invention the propulsive charge is compressed andfirmly lodged in the cartridge casing with the aid of one or moresprings, which when the propulsive charge is to be changed can be easilyremoved from and replaced in the casing after this has been withdrawnfrom the shot.

An example of the invention is shown in the accompanying drawing whichis a sectional elevation of the ammunition.

The shot 6 carries at its forward end the detonator a and at its rearend the copper rifiing band 0. Against the latter abuts a cartridgecasing (Z which is connected with the shot in such a manner that it iseasily Specification of Letters Patent.

Application filed August 22, 1910.

Patented May 30, 1911.

Serial No. 578,409.

detachable therefrom; this casing receives a propulsive charge 2'consisting of a mass of powder which may be varied. In order to holdthis charge in place there is a spring 9 contained between twocard-board disks 6, The smaller disk 0, which rests against the bottomof the shot, is connected with the larger disk by means of some easilycombustible material h surrounding the springs. There is no difiicultyin changing the propulsive charge in this casing since when the casinghas been removed from the shot, the spring and disks can easily bewithdrawn from the casing and replaced therein. The spring beingsufficiently long and of sufficient power is well adapted to hold inplace the propulsive charge whatever its thickness within reasonablelimits.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is 1. In artillery ammunition, the combination with aprojectile and a detachable cartridge casing containing a variablepropulsive charge, of a spring between the projectile and the propulsivecharge.

2. In artillery ammunition the combination with a projectile and adetachable eartridge case containing a variable amount of propulsivecharge, and two disks, one abutting the projectile and the othercovering the propulsive charge, and a spring com.- pressed between thesaid disks.

3. In artillery ammunition the combination with a projectile and adetachable cartridge case containing a variable amount of propulsivecharge, of two disks, one abutting the projectile and the other coveringthe propulsive charge, a connection of combustible material between saiddisks, and a helical spring compressedbetween said disks.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

KARL voLLnn. a 8.]

IVitnesses ALFRED HENKnn, l/VALTER VoNNEeU'r.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

